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/*
* Copyright (C) 2022 Metrological Group B.V.
* Copyright (C) 2022 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "RemoteGraphicsContextGL.h"
#if ENABLE(GPU_PROCESS) && ENABLE(WEBGL) && USE(COORDINATED_GRAPHICS) && USE(GBM)
#include <WebCore/GLFence.h>
#include <epoxy/gl.h>
namespace WebKit {
class RemoteGraphicsContextGLGBM final : public RemoteGraphicsContextGL {
public:
RemoteGraphicsContextGLGBM(GPUConnectionToWebProcess&, GraphicsContextGLIdentifier, RemoteRenderingBackend&, Ref<IPC::StreamServerConnection>&&);
private:
void platformWorkQueueInitialize(WebCore::GraphicsContextGLAttributes&&) final;
void prepareForDisplay(CompletionHandler<void(uint64_t, std::optional<WebCore::DMABufBuffer::Attributes>&&, UnixFileDescriptor&&)>&&) final;
};
RemoteGraphicsContextGLGBM::RemoteGraphicsContextGLGBM(GPUConnectionToWebProcess& connection, GraphicsContextGLIdentifier identifier, RemoteRenderingBackend& renderingBackend, Ref<IPC::StreamServerConnection>&& streamConnection)
: RemoteGraphicsContextGL(connection, identifier, renderingBackend, WTFMove(streamConnection))
{ }
void RemoteGraphicsContextGLGBM::platformWorkQueueInitialize(WebCore::GraphicsContextGLAttributes&& attributes)
{
assertIsCurrent(workQueue());
m_context = WebCore::GraphicsContextGLTextureMapperGBM::create(WTFMove(attributes));
}
void RemoteGraphicsContextGLGBM::prepareForDisplay(CompletionHandler<void(uint64_t, std::optional<WebCore::DMABufBuffer::Attributes>&&, UnixFileDescriptor&&)>&& completionHandler)
{
assertIsCurrent(workQueue());
std::unique_ptr<WebCore::GLFence> fence;
m_context->prepareForDisplayWithFinishedSignal([&fence] {
fence = WebCore::GLFence::createExportable();
if (fence)
return;
fence = WebCore::GLFence::create();
});
auto* buffer = m_context->displayBuffer();
if (!buffer) {
completionHandler(0, std::nullopt, { });
return;
}
UnixFileDescriptor fenceFD;
if (fence) {
fenceFD = fence->exportFD();
if (!fenceFD)
fence->clientWait();
} else
glFlush();
completionHandler(buffer->id(), buffer->takeAttributes(), WTFMove(fenceFD));
}
Ref<RemoteGraphicsContextGL> RemoteGraphicsContextGL::create(GPUConnectionToWebProcess& connection, WebCore::GraphicsContextGLAttributes&& attributes, GraphicsContextGLIdentifier identifier, RemoteRenderingBackend& renderingBackend, Ref<IPC::StreamServerConnection>&& streamConnection)
{
auto instance = adoptRef(*new RemoteGraphicsContextGLGBM(connection, identifier, renderingBackend, WTFMove(streamConnection)));
instance->initialize(WTFMove(attributes));
return instance;
}
} // namespace WebKit
#endif // ENABLE(GPU_PROCESS) && ENABLE(WEBGL) && USE(COORDINATED_GRAPHICS) && USE(GBM)
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